What is single stepping and how can it be achieved on the 8086?
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Answer / Vinayak
Single stepping refers to the process of executing a CPU instruction one at a time, allowing developers to debug and understand the behavior of a program step by step. In the 8086 microprocessor, single stepping can be achieved by setting the TF (Trace Flag) in the flag register using the SF flag (Single-Step Trap Flag). This is typically done by writing 'BF' hexadecimal to location 0031h (Interrupt Enable Register). The CPU will then halt after executing each instruction until the TF flag is cleared.
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